chore(deps): pin dependencies

[sc-renovate]

This PR contains the following updates:

Package	Type	Update	Change
babel-core (source)	devDependencies	pin	^5.6.15 → 5.8.38
babel-loader	devDependencies	pin	^5.3.0 → 5.4.2
backbone-events-standalone	dependencies	pin	^0.2.7 → 0.2.7
chai (source)	devDependencies	pin	^3.2.0 → 3.5.0
es6-promise	dependencies	pin	^2.3.0 → 2.3.0
eslint (source)	devDependencies	pin	^1.0.0-rc-1 → 1.10.3
form-urlencoded	dependencies	pin	^0.1.4 → 0.1.9
karma-chai (source)	devDependencies	pin	^0.1.0 → 0.1.0
karma-chrome-launcher	devDependencies	pin	^0.2.0 → 0.2.3
karma-firefox-launcher	devDependencies	pin	^0.1.6 → 0.1.7
karma-mocha	devDependencies	pin	^0.2.0 → 0.2.2
karma-safari-launcher	devDependencies	pin	^0.1.1 → 0.1.1
karma-sinon	devDependencies	pin	^1.0.4 → 1.0.5
mocha (source)	devDependencies	pin	^2.2.5 → 2.5.3
node-libs-browser	devDependencies	pin	^0.5.2 → 0.5.3
node-static	dependencies	pin	^0.7.7 → 0.7.11
query-string	dependencies	pin	^2.3.0 → 2.4.2
sinon (source)	devDependencies	pin	^1.15.4 → 1.17.7
webpack	devDependencies	pin	^1.10.1 → 1.15.0
worker-loader	devDependencies	pin	^0.6.0 → 0.6.0

Add the preset :preserveSemverRanges to your config if you don't want to pin your dependencies.

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